September weather forecast
Tanna, Vanuatu

Weather in September

The first month of the spring, September, is also a moderately hot month in Tanna, Vanuatu, with an average temperature ranging between max 24°C (75.2°F) and min 16°C (60.8°F).

Temperature

July through September, with an average high-temperature of 24°C (75.2°F), are the coldest months.

Rainfall

In Tanna, it is raining for 15 days, with typically 125mm (4.92") of accumulated precipitation. In Tanna, during the entire year, the rain falls for 213 days and collects up to 2435mm (95.87") of precipitation.

Sea temperature

August and September, with an average sea temperature of 24°C (75.2°F), are months with the coldest seawater in Tanna.
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24°C (75.2°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In September, the average length of the day in Tanna is 11h and 59min.
On the first day of September, sunrise is at 05:51 and sunset at 17:34. On the last day of the month, sunrise is at 05:25 and sunset at 17:40 +11.

Sunshine

January, February, September through December, with an average of 7h of sunshine, are months with the most sunshine.

UV index

In September, the average daily maximum UV index in Tanna is 11. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 11 in September transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What are the coldest months in Tanna?

The coldest months are July through September, with an average high-temperature of 24°C (75.2°F).

How much does it rain in Tanna in September?

In Tanna, Vanuatu, in September, it is raining for 15 days, with typically 125mm (4.92") of accumulated precipitation.

What are the months with the coldest sea water in Tanna?

August and September, with an average sea temperature of 24°C (75.2°F), are months with the coldest seawater in Tanna, Vanuatu.

What is the water temperature in September in Tanna?

In Tanna, Vanuatu, the average seawater temperature in September is 24°C (75.2°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24°C (75.2°F) water may be enjoyable.

How many hours of daylight does Tanna have in September?

In Tanna, Vanuatu, the average day length in September is 11h and 59min.

When is the sunrise / sunset in September in Tanna?

In September, on the first day of the month, sunrise is at 05:51 and sunset at 17:34. On the last day of the month, in Tanna, Vanuatu, sunrise is at 05:25 and sunset at 17:40 +11.

What is the month with the most sunshine in Tanna?

The months with the most sunshine in Tanna, Vanuatu, are January, February, September through December, with an average of 7h of sunshine.

How long on average sun shines in September in Tanna?

In Tanna, Vanuatu, the average sunshine duration in September is 7h.

What is the UV index intensity in September in Tanna?

In Tanna, the average daily maximum UV index in September is 11. A UV Index reading of 11, and higher, represents an excessive health risk from unsafe exposure to Sun's UV rays.
Average rainfall days
Average sunshine
Average UV index

Average temperature in September
Tanna, Vanuatu

Average temperature in September - Tanna, Vanuatu
  • Average high temperature in September: 24°C

The warmest month (with the highest average high temperature) is February (29°C).
The months with the lowest average high temperature are July, August and September (24°C).

  • Average low temperature in September: 16°C

The months with the highest average low temperature are January, February and March (21°C).
The coldest months (with the lowest average low temperature) are July, August and September (16°C).

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Average rainfall in September
Tanna, Vanuatu

Average rainfall in September - Tanna, Vanuatu
  • Average rainfall in September: 125mm

The wettest month (with the highest rainfall) is March (355mm).
The driest month (with the least rainfall) is October (109mm).

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Average rainfall days in September
Tanna, Vanuatu

Average rainfall days in September - Tanna, Vanuatu
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is March (22 days).
The months with the least rainy days are September and October (15 days).

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Average sea temperature in September
Tanna, Vanuatu

Average sea temperature in September - Tanna, Vanuatu
  • Average sea temperature in September: 24°C

The best months for swimming (with the highest average sea temperature) are January, February and March (28°C).
The coldest months (with the lowest average sea temperature) are August and September (24°C).

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Average daylight in September /
Average sunshine in September
Tanna, Vanuatu

Average daylight in September / Average sunshine in September - Tanna, Vanuatu
  • Average daylight in September: 11h and 59min

The month with the longest days is December (Average daylight: 13h and 17min).
The month with the shortest days is June (Average daylight: 10h and 58min).

  • Average sunshine in September: 7h

The months with the most sunshine are January, February, September, October, November and December (Average sunshine: 7h).
The month with the least sunshine is June (Average sunshine: 5h).

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Average UV index in September
Tanna, Vanuatu

Average UV index in September - Tanna, Vanuatu
  • Average UV index in September: 11

The months with the highest UV index are January, February, March, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 6).

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